@article{TIMM_2007_13_2_a11,
     author = {O. O. Kovrizhnykh},
     title = {On an asymptotic solution of a~singularly perturbed system with two small parameters},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {124--134},
     year = {2007},
     volume = {13},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2007_13_2_a11/}
}